Sun velocities from GOLF instrument

DOI

The recent claims of g-mode detection have restarted the search for these potentially extremely important modes. These claims can be reassessed in view of the different data sets available from the SoHO instruments and ground-based instruments. We produce a new calibration of the GOLF data with a more consistent p-mode amplitude and a more consistent time shift correction compared to the time series used in the past. The calibration of 22 years of GOLF data is done with a simpler approach that uses only the predictive radial velocity of the SoHO spacecraft as a reference. Using p modes, we measure and correct the time shift between ground- and space-based instruments and the GOLF instrument. The p-mode velocity calibration is now consistent to within a few percent with other instruments. The remaining time shifts are within +/-5s for 99.8% of the time series.

Identifier
DOI http://doi.org/10.26093/cds/vizier.36170108
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/617/A108
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/617/A108
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/617/A108
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/617/A108
Provenance
Creator Appourchaux T.; Boumier P.; Leibacher J.W.; Corbard T.
Publisher CDS
Publication Year 2018
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Natural Sciences; Physics; Solar System Astronomy; Stellar Astronomy